"""
Case Type   : 操作系统类-文件系统故障
Case Name   : gs_backup备份/gs_backup -t restore恢复时，注入故障硬连接数满
Create At   : 2021/8/3
Owner       : li-xin12345
Description :
    1、注入文件系统硬连接数满故障
    2、启线程执行gs_backup备份
    3、清理故障，再次执行gs_backup备份
    4、注入文件系统硬连接数满故障
    5、启线程执行gs_backup -t restore恢复
    6、清理故障，再次执行gs_backup -t restore恢复
    7、运行TPCC
    8、检查数据一致性
    9、恢复环境
Expect      :
    1、故障注入成功
    2、gs_backup成功
    3、清理故障成功
    4、故障注入成功
    5、gs_backup -t restore成功
    6、清理故障成功
    7、运行TPCC成功
    8、数据一致
    9、恢复环境
History     :
"""
import os
import time
import unittest

from testcase.utils.ComThread import ComThread
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.CommonSH import RestartDbCluster
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node, macro


class ReliabilityFileSystem(unittest.TestCase):
    nodes = ("PrimaryDbUser", "Standby1DbUser", "Standby2DbUser")

    @RestartDbCluster(*nodes)
    def setUp(self):
        self.log = Logger()
        self.primary_node = Node(self.nodes[0])
        self.primary_sh = CommonSH(self.nodes[0])
        self.primary_root_node = Node(node="PrimaryRoot")
        self.constant = Constant()
        self.com = Common()
        self.log.info("setUp-实例化:ok")

        self.log.info("Opengauss_Reliability_OS_File_System_Case044:开始执行")
        self.log.info("创建备份文件夹")
        self.backup_path = os.path.join(os.path.join(
            os.path.dirname(macro.DB_INSTANCE_PATH)),
            "backup_dir")
        result = self.com.get_sh_result(self.primary_node,
                                        f"rm -rf {self.backup_path};"
                                        f"mkdir {self.backup_path}")
        self.log.info(result)

        self.port = self.primary_node.db_port
        self.db_name = self.primary_node.db_name
        self.file_name = f"{macro.DB_INSTANCE_PATH}/postgresql.conf"
        self.inject_cmd = f"rfile_ldeplenish_workmode " \
                          f"(filename, workmode) " \
                          f"values ({self.file_name}, fore)"

        self.clean_cmd = f"rfile_ldeplenish_workmode where " \
                         f"filename={self.file_name} and workmode=fore"

    def test_main(self):
        text = "获取主机名"
        self.log.info(text)
        result = self.primary_root_node.sh("hostname").result()
        self.log.info(result)
        self.assertNotIn("bash", result, "执行失败" + text)
        self.hostname = result

        try:
            text = "--step1:主节点注入硬连接数满故障;expect:成功"
            self.log.info(text)
            self.log.info("注入故障")
            session1 = ComThread(self.com.cfe_inject,
                                 args=(self.primary_root_node,
                                       self.inject_cmd))
            session1.setDaemon(True)
            session1.start()
            time.sleep(1)

            self.log.info("故障注入结果")
            session1.join(60 * 30)
            result = session1.get_result()
            self.log.info(result)
            self.assertIn("successful execution", result, "执行失败" + text)

            text = "--step2:执行gs_backup备份;expect:成功"
            self.log.info(text)
            self.log.info("启线程创建指定实例的备份")
            session2 = ComThread(self.com.get_sh_result,
                                 args=(self.primary_node,
                                       f"source {macro.DB_ENV_PATH};"
                                       f"gs_backup -t backup "
                                       f"--backup-dir={self.backup_path}"))
            session2.setDaemon(True)
            session2.start()

            self.log.info("gs_backup备份结果")
            session2.join(60 * 30)
            result = session2.get_result()
            self.log.info(result)
            self.assertIn("Successfully backed up cluster files", result,
                          "执行失败" + text)
            self.assertNotIn(self.constant.DISK_FULL_MSG, result,
                             "执行失败" + text)

        finally:
            text = "--step3:清除故障;expect:成功"
            self.log.info(text)
            result = self.com.cfe_clean(self.primary_root_node,
                                        self.clean_cmd)
            self.log.info(result)
            self.assertIn("successful execution", result, "执行失败" + text)

        self.log.info("gs_backup备份测试结束 开始恢复测试")

        try:
            text = "--step4:主节点注入硬连接数满故障;expect:成功"
            self.log.info(text)
            self.log.info("注入故障")
            session1 = ComThread(self.com.cfe_inject,
                                 args=(self.primary_root_node,
                                       self.inject_cmd))
            session1.setDaemon(True)
            session1.start()
            time.sleep(1)

            self.log.info("故障注入结果")
            session1.join(60 * 30)
            result = session1.get_result()
            self.log.info(result)
            self.assertIn("successful execution", result, "执行失败" + text)

            text = "--step5:执行gs_backup备份;expect:成功"
            self.log.info(text)
            session2 = ComThread(self.com.get_sh_result,
                                 args=(self.primary_node,
                                       f"source {macro.DB_ENV_PATH};"
                                       f"gs_backup -t restore "
                                       f"--backup-dir={self.backup_path} "
                                       f"-h {self.hostname}"))
            session2.setDaemon(True)
            session2.start()
            time.sleep(2)

            self.log.info("gs_backup备份结果")
            session2.join(60 * 30)
            result = session2.get_result()
            self.log.info(result)
            self.assertIn("Successfully restored cluster files", result,
                          "执行失败" + text)
            self.assertNotIn(self.constant.DISK_FULL_MSG, result,
                             "执行失败" + text)

        finally:
            text = "--step6:清除故障;expect:成功"
            self.log.info(text)
            result = self.com.cfe_clean(self.primary_root_node,
                                        self.clean_cmd)
            self.log.info(result)
            self.assertIn("successful execution", result, "执行失败" + text)

        db_status = self.primary_sh.getDbClusterStatus("detail")
        self.log.info(db_status)
        self.assertTrue("Degraded" in db_status or "Normal" in db_status)

        text = "--step7:运行TPCC;expect:成功"
        self.log.info(text)
        result = self.com.startTPCC(self.primary_root_node, macro.TPCC_PATH)
        self.log.info(result)
        self.assertIn(self.constant.TPCC_SUCCESS_MSG, result, "执行失败" + text)

        self.log.info("检查主备是否同步")
        time.sleep(10)
        self.log.info("获取节点数量")
        node_num = self.primary_sh.get_node_num()
        res = self.primary_sh.check_location_consistency("primary", node_num)
        self.assertTrue(res, "执行失败" + text)

        text = "--step8:检查数据一致性;expect:成功"
        self.log.info(text)
        nodes = (Node(self.nodes[0]), Node(self.nodes[1]),
                 Node(self.nodes[2]))
        flag = self.com.check_data_sample_by_all(r'\d', *nodes)
        self.assertTrue(flag, "执行失败" + text)
        table_dict = self.com.format_sql_result(
            self.primary_sh.executDbSql(r'\d'))
        table_name = table_dict.get('Name')
        for name in table_name:
            select_sql = f"select count(*) from {name};"
            flag = self.com.check_data_sample_by_all(select_sql, *nodes)
            self.assertTrue(flag, "执行失败" + text)

    def tearDown(self):
        text = "--step9:环境清理;expect:成功"
        self.log.info(text)
        res1 = self.com.cfe_clean(self.primary_root_node,
                                  self.clean_cmd)
        self.log.info(res1)
        self.log.info("删除相关文件夹")
        result = self.com.get_sh_result(self.primary_node,
                                        f"rm -rf {self.backup_path}")
        self.log.info(result)
        self.assertIn("successful execution", res1)
        self.log.info("故障已清理")
        self.log.info("Opengauss_Reliability_OS_File_System_Case044:执行完成")
